<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<style>
#div1 { width:400px; height:400px; border:1px solid #333; border-radius:0 0 80px 20px; }
</style>
</head>

<body>

<div id="div1"></div>

</body>
</html>
